500Mbos Homeplug Powerline Ethernet adapter, compliant with HomePlug AV specification 1.1 with a high speed transfer rate of up to 500 Mbps. The power line Ethernet adapters 56-Bit encryption with key management. A minimum of two Adapters are needed and more can be added as the network grows. Pass through function allows you to free up a power socket that would otherwise be taken by the homeplug. Please note that while homeplugs will work with most operating systems, the software bundled will only work on Windows based machines.Read Less